Merge from Widevine repo of http://go/wvgerrit/22963 This change kInactive to kInactiveUsed and adds kInactiveUnused to the possible values for the status field in the Usage Report. This CL updates the header, the unit tests, and haystack and reference code. b/32714323 Change-Id: If8d8e32ea1e3dc18da34e5fae35f578b027de9c7